<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--准备好一个“容器”-->
<div id="test"></div>

<!--引入react核心库-->
<script type="text/javascript" src="../js/react.development.js"></script>
<!--引入react-dom，用于支持react操作DOM -->
<script type="text/javascript" src="../js/react-dom.development.js"></script>
<!--引入babel，用于将jsx转为js -->
<script type="text/javascript" src="../js/babel.min.js"></script>

<script type="text/babel">
    //1.创建组件
    class Weather extends React.Component {
        state = {isHot: true, wind: '微风'}

        render() {
            const {isHot, wind} = this.state
            return <h1 onClick={this.changeWeather}>今天天气很{isHot ? '炎热' : '凉爽'},{wind}</h1>
        }

        changeWeather = () => {
            const isHot = this.state.isHot
            this.setState({isHot: !isHot})
        }
    }

    //2.渲染组件到页面
    ReactDOM.render(<Weather/>, document.getElementById('test'))
</script>
</body>
</html>